Décrit le schéma d'une couche géospatiale (champs et types).
AI agents call describe_geospatial_layer to retrieve information from Données Québec MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns structural metadata (schema information) about a geospatial layer without executing queries, modifying data, or triggering side effects. Schema inspection is a foundational Read operation commonly used to understand data structure before analysis. No blast radius from misuse—at worst, an agent learns about available fields.
From the tool's definition Tool name 'describe_geospatial_layer' and description 'Décrit le schéma d'une couche géospatiale (champs et types)' indicate schema inspection only.
Attacks that exploit this kind of access
Décrit le schéma d'une couche géospatiale (champs et types). It is categorised as a Read tool in the Données Québec MCP MCP Server, which means it retrieves data without modifying state.
Register the Données Québec MCP server in PolicyLayer and add a rule for describe_geospatial_layer: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Données Québec MCP. Nothing to install.
describe_geospatial_layer is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the describe_geospatial_layer rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for describe_geospatial_layer. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
describe_geospatial_layer is provided by the Données Québec MCP server (stefen-taime/donneesqc-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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